@breaktime1903

[breaktime1903]

@breaktime1903

I am not sure how to do it.

Originally posted by @modi12jin in https://github.com/notro/fbtft/issues/567#issuecomment-774871435

[breaktime1903]

这貌似要改DTS了

[breaktime1903]

谁能帮我一下

[modi12jin]

@breaktime1903

sun8i-h3-spi-st7789v-led-always-on.dts

/dts-v1/;
/plugin/;

/ {
    compatible = "allwinner,sun8i-h3";    

  fragment@0 {
    target = <&pio>;
    __overlay__ {
      st7789v_pins: st7789v_pins {
        pins = "PG7", "PG6"; /*RESET, DC_RS*/
        function = "gpio_out","gpio_out";
      };
    };
  };

  fragment@1 {
    target = <&spi1>;
    __overlay__ {
      #address-cells = <1>;
      #size-cells = <0>;
      status = "okay";      
      cs-gpios = <&pio 0 16 0>; /* PA16 */

      st7789v: st7789v@0 {
        compatible = "sitronix,st7789v";
        reg = <0>;
        pinctrl-names = "default";
        pinctrl-0 = <&st7789v_pins>;
        spi-max-frequency = <16000000>;
        rotate = <270>;
        bgr;
        fps = <30>;
        height = <240>;
        width = <240>;
        buswidth = <8>;
        reset-gpios = <&pio 6 7 1>; /*RESET=PG7*/
        dc-gpios = <&pio 6 6 0>; /*DC_RS=PG6*/
        /*led-gpios = <&pio 2 4 0>; LED=PC4*/
        debug = <0>;
        init = <0x1000011
        0x20000ff
        0x100003A 0x55
        0x10000C0 0x0C
        0x1000021
        0x1000029 >;
      };
    };
  };
};

dtc -O dtb -o sun8i-h3-spi-st7789v-led-always-on.dtbo sun8i-h3-spi-st7789v-led-always-on.dts

[modi12jin]

find /lib/modules/$(uname -r)/kernel/drivers/ -iname "*st7789v*"

[modi12jin]

sudo nano /boot/armbianEnv.txt

overlays=spi-spidev
param_spidev_spi_bus=1
param_spidev_spi_cs=1

dmesg | grep spi

[modi12jin]

@breaktime1903

https://user-images.githubusercontent.com/40233017/116118087-8d1fd400-a6ef-11eb-942e-5a24aa64dc1f.mp4

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